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Recording a Training Script Using a Bouncing Ball

IP.com Disclosure Number: IPCOM000100315D
Original Publication Date: 1990-Apr-01
Included in the Prior Art Database: 2005-Mar-15
Document File: 2 page(s) / 57K

Publishing Venue

IBM

Related People

Brown, N: AUTHOR [+5]

Abstract

Disclosed is a user-interface for training speech for an isolated- speech recognizer that records a sentence at a time, using a "bouncing ball". The bouncing ball paces the user so they speak in isolated speech.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 57% of the total text.

Recording a Training Script Using a Bouncing Ball

       Disclosed is a user-interface for training speech for an
isolated- speech recognizer that records a sentence at a time, using
a "bouncing ball".  The bouncing ball paces the user so they speak in
isolated speech.

      In capturing training speech for an isolated-speech recognition
system, it is beneficial to record sentences instead of words.  This
gives the system broad acoustic variations due to coarticulation.
The problem is that new users of the system do not know how to speak
in isolated speech.  They tend to run words together, syllabify
words, turn the microphone while saying the first word, or turn the
microphone off too soon after saying the last word.  This disclosure
presents a user-interface that highlights each word, one at a time.
The user need only say each word when it becomes highlighted.

      The rate at which the words are highlighted (that is, the
bouncing ball), can be determined in any of a variety of ways.  One
way is to use the length of the word, another is to examine the
phonemes in the word, another is to use table look-up.  The ideal way
is to use a dynamic approach, by signal processing the user's speech,
and upon determining that the user has completed pronouncing a word,
delay slightly and advance to the next word.

      The bouncing ball can be presented in a variety of ways.  One
way is to highlight words in the sentence, another is to draw a box
around eac...